Million Second Quiz (8pm, NBC) - Hosted and executive produced by Ryan Seacrest, an interactive game show in which contestants face off in intense trivia bouts.
Mistresses (9pm, ABC) - In the first season (and hopefully series?) finale, Savi embarks on a road tri pfor her birthday, and something unexpected happens. Also, April makes a choice regarding Paul and Richard, and Karen and Elizabeth face off one last time.
T.I. and Tiny: The Family Hustle (9pm, VH1) - T.I. and Tiny attend a NASCAR event, then compete in a driving contest when they bicker over which of them is the better driver.
Under the Dome (10pm, CBS) - Barbie tries to protect Julia before Big Jim finds her. Meanwhile, Big Jim stirs up the locals who demand justice for all of Barbie's alleged crimes, while Joe and Norrie search for a new hiding place for the mini dome.
The Triumph of American Film and the First of Its Rebels (1918-1928) (10pm, TCM) - Another installment in Turner Classic Movies' "Story of Film" series, this one featuring profiles of influential filmmakers and stars like Charlie Chaplin and Buster Keaton.